| 基于RLS-ANC自适应滤波的FECG信号提取方法 |
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| 引用本文： | 刘世金,徐文,刘大利,苏明. 基于RLS-ANC自适应滤波的FECG信号提取方法[J]. 北京生物医学工程, 2005, 24(6): 414-417 |
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| 作者姓名： | 刘世金 徐文 刘大利 苏明 |
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| 作者单位： | 湖北国土资源职业学院信息工程系,湖北荆州,434002;湖北国土资源职业学院信息工程系,湖北荆州,434002;湖北国土资源职业学院信息工程系,湖北荆州,434002;湖北国土资源职业学院信息工程系,湖北荆州,434002 |
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| 摘 要： | 本文应用RLS-ANC(recursive least squares adaptive noise canceⅡation)自适应滤波方法提取胎儿心电(FECG)信号.该方法采用RLS-ANC自适应滤波消除母亲心电,提取胎儿心电信号.实验结果表明,本方法适应非平稳信号的能力强,收敛速度快,提取效果好于NLMS(normalized least mean squares)算法.
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| 关 键 词： | 胎儿心电 自适应滤波 自适应噪声抵消 RLS算法 NLMS算法 |
| 文章编号： | 1002-3208（2005）06-0414-04 |
| 收稿时间： | 2004-12-14 |
| 修稿时间： | 2005-05-08 |
A Method for Extracting Fetal Electrocardiogram Based on Recursive Least Squares Adaptive Noise Cancellation Filtering |
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| LIU Shijin,XU Wen,LIU Dali,SU Ming. A Method for Extracting Fetal Electrocardiogram Based on Recursive Least Squares Adaptive Noise Cancellation Filtering[J]. Beijing Biomedical Engineering, 2005, 24(6): 414-417 |
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| Authors: | LIU Shijin XU Wen LIU Dali SU Ming |
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| Affiliation: | Department of Information Engineering, Hubei Professional College of Land Resource, Jingzhou, Hubei Province 434002 |
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| Abstract: | A method based on recursive least squares adaptive noise cancellation filtering is used to extract FECG. The recursive least squares adaptive noise cancellation (RLS-ANC)filtering has been applied for eliminating maternal ECG to realize the extraction fetal ECG. The experiments demonstrate that the performance of the FECG extraction based on RLS-ANC is better than that based on normalized least mean squares(NLMS), it can improve the convergence rate of NLMS algorithm and the adaptive tracking ability of non-stationary signal. |
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| Keywords: | fetal electrocardiogram adaptive filtering adaptive noise cancellation recursive least squares algorithm normalized least mean squares algorithm |
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